<template>
  <div class="ratingselect">
    <div class="rating-type border-bottom">
      <span class="block positive" :class="{'active':selected === 2}" @click="select(2)">
        {{desc.all}}<span class="count">{{ratings.length}}</span>
      </span>
      <span class="block positive" :class="{'active':selected === 0}" @click="select(0)">{{desc.positive}}<span class="count">{{positives.length}}</span></span>
      <span class="block negative" :class="{'active':selected === 1}" @click="select(1)">{{desc.negative}}<span class="count">{{negatives.length}}</span></span>
    </div>
    <div class="switch" :class="{'on':this.onlyContent}" @click="toggleContent()">
      <span class="icon-check_circle"></span>
      <span class="text">只看有内容的评价</span>
    </div>
  </div>
</template>

<script>
const POSITIVE = 0
const NEGATIVE = 1
const ALL = 2

export default {
  name: 'ratingselect',
  props: {
    ratings: {
      type: Array,
      default () {
        return []
      }
    },
    selectType: {
      type: Number,
      default () {
        return ALL
      }
    },
    onlyContent: {
      type: Boolean,
      default: false
    },
    desc: {
      type: Object,
      default () {
        return {
          all: '全部',
          positive: '满意',
          negative: '不满意'
        }
      }
    }
  },
  data () {
    return {
      selected: this.selectType,
      /*togglebool: this.onlyContent*/
    }
  },
  computed: {
    positives () {
      return this.ratings.filter((rating) => {
        return rating.rateType === POSITIVE
      })
    },
    negatives () {
      return this.ratings.filter((rating) => {
        return rating.rateType === NEGATIVE
      })
    }
  },
  methods: {
    select (type) {
      this.selected = type
      this.$emit('select', type)
    },
    toggleContent () {
      // 向父组件 发送数据，通过 $emit ('xxx',arguments);  父组件： @xxx = '父组件自己的方法aaa'  在 父组件  methods 里调用 aaa(arguments) 接受参数
      this.$emit('onlyContent', this.onlyContent)
    }
  }
}
</script>

<style lang="stylus" scoped>
  .ratingselect
    .rating-type
      padding .36rem 0
      margin 0 .36rem
      font-size 0
      &.border-bottom::before
        border-bottom 1px solid rgba(7,17,27,.2)
      .block
        display inline-block
        padding .16rem .24rem
        margin-right .16rem
        line-height .32rem
        border-radius .02rem
        font-size .24rem
        color rgb(77,85,93)
        &.active
          color #ffffff
        .count
          margin-left .04rem
          font-size .16rems
        &.positive
          background rgba(0,160,220,.2)
          &.active
            background rgb(0,160,220)
        &.negative
          background rgba(77,85,93,.2)
          &.active
            background rgb(77,85,93)
  .switch
    padding .24rem .36rem
    line-height .48rem
    border-bottom 1px solid rgba(7,17,27,.2)
    color rgb(147,153,159)
    font-size 0
    &.on
      .icon-check_circle
        color #00c850
    .icon-check_circle
      display inline
      vertical-align top
      margin-right .08rem
      font-size .48rem
    .text
      display inline-block
      vertical-align top
      font-size .24rem
</style>
